DocumentCode :
911445
Title :
Computation of the Electromagnetic Fields and Induced Temperatures Within a Model of the Microwave-Irradiated Human Eye
Author :
Taflove, Allen ; Brodwin, Morris E.
Volume :
23
Issue :
11
fYear :
1975
fDate :
11/1/1975 12:00:00 AM
Firstpage :
888
Lastpage :
896
Abstract :
The electromagnetic fields within a detailed model of the human eye and its surrounding bony orbit are calculated for two different frequencies of plane-wave irradiation: 750 MHz and 1.5 GHz. The computation is performed with a finite-difference algorithm for the time-dependent Maxwell´s equations, carried out to the sinusoidal steady state. The heating potential, derived from the square of the electric field, is used to calculate the temperatures induced within the eyeball of the model. This computation is performed with the implicit alternating-direction (IAD) algorithm for the heat conduction equation. Using an order-of-magnitude estimate of the heat-sinking capacity of the retinal blood supply, it is determined that a hot spot exceeding 40.4°C occurs at the center of the model eyeball at an incident power level of 100 mW/cm2 at 1.5 GHz.
Keywords :
Electromagnetic fields; Electromagnetic heating; Electromagnetic modeling; Finite difference methods; Frequency; Humans; Maxwell equations; Orbital calculations; Steady-state; Temperature;
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.1975.1128708
Filename :
1128708
Link To Document :
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